Eroare de compilare: user.cpp:5:8: error: expected constructor, destructor, or type conversion before ‘(’ token freopen("decrease.in","r",stdin); ^ user.cpp:6:8: error: expected constructor, destructor, or type conversion before ‘(’ token freopen("decrease.out","w",stdout); ^ user.cpp: In function ‘int main()’: user.cpp:11:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ user.cpp:16:34: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] if(i<n) scanf("%d",&v[i]); ^